GB190212455A - Improvements in or relating to a Recording or Reproducing Stylus with an Enlarged, Pointed Head for Sound-boxes of Gramophones
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Improvements in or relating to a Recording or Reproducing Stylus with an Enlarged, Pointed Head for Sound-boxes of Gramophones
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Josef Jungbecker
Gustav Herrmann
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12,455. Jungbecker, J., and Herrmann, G. May 31. Phonographs. - A recording or reproducing style is formed with a thickened point b.
GB190212455D1902-05-311902-05-31Improvements in or relating to a Recording or Reproducing Stylus with an Enlarged, Pointed Head for Sound-boxes of Gramophones
ExpiredGB190212455A
(en)